"Cal Preserving did a great job on our very difficult to install Ipe (Brazilian Walnut) deck. I would definitely use them again."

With over two decades of experience, Ground Logic transforms your outdoor space into a functional and beautiful extension of your home.  We specialize in the installation of hardscapes such as paver stones, concrete, and artificial turf, providing Bay Area residents with exceptional outdoor landscaping solutions. Our skilled team is passionate about creating inviting front and backyards, driveways, walkways, and lawns that enhance your property's value and aesthetic appeal.  \n

"Efficient job as agreed and best cost in the San Francisco area"

"Wonderful. They were very professional and the patio looks great. Highly recommend."

"When we finally decided to do pavers for the front of our home, we were very lucky to casually stubble (funny story) into Rocco Pent! Great all around guy! I received multiple estimates but I was very impressed with Rocco's honesty, attention to detail, presentation, knowledge, and professionalism. I had a lot of questions, and I pay attention to every little detail - so I appreciated Rocco's patience and understanding in answering all my picky questions. I loved that I could see my project laid out visually before starting - that was very huge and important to me. Rocco made sure the project was done right from start to finish! It was also great to hear from one of the project coordinators, Travis, who personally called us to make sure things are good and if I had any questions/concerns along the way to call him anytime - great customer service! I am so happy with the work done by Black Diamond! Black Diamond delivered a beautiful transformation to our driveway, walkway and front porch! Geo (our foreman) and his team were clean, meticulous, and efficient, making sure my home was cleaned up before leaving each day - huge plus! We also had the front facade of our house replaced at the same time by other contractors. The projects impacted each other and Geo was helpful in making sure everyone working could finish and not get in each others way as much as possible. I just love my new driveway and patio, it looks so clean and modern! I get so many neighbors (and bikers riding by) saying how awesome it looks! We hope to replace our grass areas as well one day and will surely get back in touch with Black Diamond to beatify our home even more! Thanks Black Diamond, and Rocco!"

"It went great. the salesman David came out promptly to do the estimate.  He quoted me on a couple of different options. I then had to choose the fabric.  All the fabrics are Sunbrella, which is great.  I compared their product to Sunsetter's options, and these are much higher quality (and cost more, of course).  4 weeks later, they came to install the product, they were extremely friendly and professional- it took about 3 hours and they were done.  Very happy with the service and the product.  They stayed in touch at all times.
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"We worked with Sequoia on a backyard project (expansion and drainage) this past summer (2023). We loved working with Will. He had great ideas and was flexible and open to considering and incorporating our ideas- which turned into an absolutely beautiful space. He was also willing to work within our budget. In fact, he recommended a tweak to our original ideas to maximize our funds and as a result, we have a much more beautiful, practical, and useable space. Regarding drainage, I am happy to report that after all the rain so far this season, we have been waking up to a completely dry patio. Each storm has brought massive amounts of water that have drained perfectly. As a comparison, last year we had a swap in multiple parts of the yard. It may not be where you want to spend your budget, but if you have drainage problems, it is well worth it. Side note, we also referred Sequoia to a friend who had a smaller budget project, and they did a beautiful job for them as well. Therefore, no job too big or too small. Cannot wait to use our yard this summer. Highly recommend!"

"Eli and his crew did excellent work taking out some holly trees looming over our house and deck. They were very careful not to damage anything, were very thorough getting all of the stumps out, and left the place really clean."

"The landscape designer was creative and knowledgeable. They took the time to understand my needs and preferences, and the end result was a beautiful and functional outdoor space."

"Fantastic. Always responsive. First rate workers"